Head motion for looms



Jan. 2 1

v 927 H. BEYTES HEAD MOTION FUR LOOMS 2 Sheets-Sheet- 1 Filed Julyl, 1925 INVENTOR Leon BY ATTORNEYS WITNESSES W ITNESSES L. H. BEYTES HEAD MOTION FOR LOOMS Jan, 25, 1927. ,73

Filed Julyl, 1925 2 Sheets-:Sheet 2 INVENTOR Leon Jf, Beg/[$68 ATTORNEYS ill Patented Jan. 25, 1927.

UNITED STATES LEON HENRY IBEYTES, OF NORTH PLYMOUTH, .lIIASSACI-IUSETTS.

HEAD MOTION FOR LOOMS.

Application filed July 1,

This invention relates to head motions for looms and more particularly to an improved construction and arrangement of chain cylinder and chain, or chains, for imparting motion to the harness of the loom and also for controlling the box motion.

An object of the invention is to provide a chain cylinder so designed that chains of varying lengths and of varying widths can be run at the same time and so controlled that each chain keeps in perfect alinement and position when at point of contact on the cylinder.

A further object is to provide an improved construction of chain in which the links are so designed that they can be joined into an endless chain, kept in perfect alinement at point of contact on the cylinder, and have any desired arrangement of cams thereon controlling the operation of the harness of the loom. The number of links in each chain can be varied and, if desired, an individual or separate chain may be provided for each harness of the loom.

The primary object of the invention, therefore, is to provide a cylinder and arrangement of chains having the desired number of links and of the desired width, whereby the control of the harness can be operated to suit in making any desired design and in the control of the box motion.

With these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts, which will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings Figure 1 is a view in vertical section, illustrating more or less diagrammatically my invention as applied to one type of loom, al though it is to be distinctly understood that the invention is applicable to many types of loom and I do not limit myself in this particular;

Figure 2 is a broken view in elevation, showing my improved cylinder with a single harness controlling chain thereon and a second box motion chain thereon;

Figure 3 is an enlarged end view of one link of a chain;

Figure 4 is a fragmentary view in trans verse section on the line 4.-4i of Figure 3;

Figure 5 is a view similar to Figure 4:. taken on the line 5-5 of Figure 3;

Figure 6 is a broken view in elevation,

1925. Serial No. 40,928.

showing the cylinder equipped with a plurality of chains;

Figure 7 is an end view, showing a number of chains of different length on the same cylinder.

1 represents a lever which when moved in one direction controls the operation of gears 2, 3 and 4 which in turn control the movementof the harness. The illustration in Figure 1 is given merely to show one type ofmechanism that is moved to control the harness, but I would have it distinctly understood that the invention is adapted for many different types of mechanism, the only essential difference being that some member, for example the lever 1, is caused to move to control each harness.

My invention resides in the provision of an improved cylinder 4 with improved chains 5 having cams 6 thereon which control or cause the movement of the member 1 which in turn controls the harness. The cylinder t is provided with longitudinal grooves 7 and the chain links 8 are made with longitudinal heads 9 which fit the grooves 7 and compel the chains to move with the cyl nder the latter revolves.

The chains 5 are made up of any desired number of links of any desired width, the links being pivotally connected, as shown at 10, and each link constituting an arc of a circle so as to fit the outer surface of the cylinder. To prevent lateral movement or displacement of the chain on the cylinder the links 8 are formed on their inner faces-with webs 11 which move in grooves 12 in the cylinder, and said webs are preferably tapered or sharpened at their free ends to in sure a proper meshing with the grooves, as clearly illustrated in Figure 4.

While I have illustrated the links of such a length that four of such links will encompass the circumference of the cylinder, it is obvious that the cylinder and the arrangement of links may be such that the circumference may be divided into any desired number of sectors, each sector being covered by a link, the primary and important feature being that the links lit the surface of the cylinder and are held against accidental movement when in operative position.

On the links 8 I secure cams 6 which may be removably secured to the outer faces of the links and preferably at the intermediate portions thereof, and as a means for securmg said cams I illustrate screws 14: which lilt) are projected through the webs 11 and which are screwed into the cams, but it is of course to be understood that the invention is not limited to the particular cam securing means setforth.

As shown in Figure 2, I may employ a single chain of a sufficient width to operate the entire harness of the loom, and in addition thereto I may provide a narrower chain, shown at the left of Figure 2, which may operatively control the box motion of the loom through the medium of cams 6. These chains are precisely alike in construction except hat they are of different widths, and the arrangement of cams on the several links can be varied and the length of the chains can be varied in accordance with the length of the repeats of the loom.

As shown in Figures 6 and 7 I may employ a series of separate chains, each for a single harness or each chain for a number of harnesses. This is also true of the box motion chains at the left of Figure 6. By reference to Figure 7 it will be seen that these chains may be of varying lengths so that one harness or one set of harnesses may be operated in proper time in accordance with the repeat of the design, and another set of harnesses or a single harness may repeat at a different time or different length of operation. By reason of a construction of cylinder and chain such as above described any pattern may be woven by simply having the proper arrangement of chains and links and the proper arrangement of cams thereon, it being understood of course that the cams control some means which in turn controls the operation of the harness or harnesses.

To illustrate: Suppose the device is operating on a 30-harness loom. Thirty chains may be run at the same time and no two chains of the same length, but each chain will control one harness. Or there may be one chain that controls fifteen harnesses, one that controls ten, and one that controls five, and the sum of the widths of the chains will control the whole thirty. On the otherhand, the entire thirty harnesses may be controlled by a single chain composed of links of the desired width.

true that the chain or combined chains will need be only as wide as the number of levers controlling the harnesses to be used onany given weave. Therefore, on a weave that part of the harness may be caused to repeat in live bars or live, seven or nine links, or in any desired number or series of numbers to suit the design. The operation will be entirely automatic after the chains are properly arranged.

It isof course to be assumed that the links of the chains can be removably connected so that a chain of any desired number of links may be made, and the cams may be located on the links as desired, so that by having a supply of links the chains may be formed to suit any design. I

Various slight changes and alterations might be made in the general form of the parts described without departing from my invention and hence I do not limit myself to the precise details set forth but consider myself at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of the appended claims.

I claim:

1. An apparatus of the character de scribed, including a cylinder having longitudinal and annular grooves, a plurality of independent harness operating chains on the cylinder, heads on the links of each chain adapted to engage the longitudinal grooves of the cylinder, webs on the links adapted to engage in the annular grooves in the cylinder, and cams on the links.

2. An apparatus of the character described, including a cylinder having longitudinal and annular grooves, a harness operating chain on the cylinder, heads on the links of the chain adapted to engage in the longitudinal grooves of the cylinder, webs on the links adapted to engage in the an nular grooves in the cylinder, and cams on the links.

LEON HENRY BEYTES. 

